发现在R语言中有一个Barro的数据. 用下面的命令
data(barro)
attach(barro)
就可以调用这些数据了。
A data frame containing 161 observations on 14 variables:

[,1]  "Annual Change Per Capita GDP"
[,2]  "Initial Per Capita GDP"
[,3]  "Male Secondary Education"
[,4]  "Female Secondary Education"
[,5]  "Female Higher Education"
[,6]  "Male Higher Education"
[,7]  "Life Expectancy"
[,8]  "Human Capital"
[,9]  "Education/GDP"
[,10]  "Investment/GDP"
[,11]  "Public Consumption/GDP"
[,12]  "Black Market Premium"
[,13]  "Political Instability"
[,14]  "Growth Rate Terms Trade"